Roof vent sleeve with round base



FIG. 1 is a perspective view of the roof vent sleeve with round base;

FIG. 2 is a side elevational view thereof, with all sides of the design being identical thereto;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof. 

CLAIM The ornamental design for a roof vent sleeve with round base, as shown and described. 